/Engine/Source/Editor/AudioEditor/Classes/SoundSubmixGraph/SoundSubmixGraph.h
Display SoundSubmixes (and all of their children) that have been dragged onto the editor
void AddDroppedSoundSubmixes ( const [TSet](API\Runtime\Core\Containers\TSet)< [USoundSubmixBase](API\Runtime\Engine\Sound\USoundSubmixBase) * > & SoundSubmixes, int32 NodePosX, int32 NodePosY )